| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "xfa/fxfa/cxfa_ffpageview.h" |
| |
| #include <algorithm> |
| #include <memory> |
| #include <vector> |
| |
| #include "third_party/base/ptr_util.h" |
| #include "third_party/base/stl_util.h" |
| #include "xfa/fde/cfde_rendercontext.h" |
| #include "xfa/fxfa/cxfa_ffcheckbutton.h" |
| #include "xfa/fxfa/cxfa_ffdoc.h" |
| #include "xfa/fxfa/cxfa_ffdocview.h" |
| #include "xfa/fxfa/cxfa_fffield.h" |
| #include "xfa/fxfa/cxfa_ffimageedit.h" |
| #include "xfa/fxfa/cxfa_ffpushbutton.h" |
| #include "xfa/fxfa/cxfa_ffwidget.h" |
| #include "xfa/fxfa/cxfa_fwladapterwidgetmgr.h" |
| #include "xfa/fxfa/parser/cxfa_node.h" |
| |
| namespace { |
| |
| CFX_Matrix GetPageMatrix(const CFX_RectF& docPageRect, |
| const CFX_Rect& devicePageRect, |
| int32_t iRotate, |
| uint32_t dwCoordinatesType) { |
| ASSERT(iRotate >= 0 && iRotate <= 3); |
| |
| bool bFlipX = (dwCoordinatesType & 0x01) != 0; |
| bool bFlipY = (dwCoordinatesType & 0x02) != 0; |
| CFX_Matrix m((bFlipX ? -1.0f : 1.0f), 0, 0, (bFlipY ? -1.0f : 1.0f), 0, 0); |
| if (iRotate == 0 || iRotate == 2) { |
| m.a *= (float)devicePageRect.width / docPageRect.width; |
| m.d *= (float)devicePageRect.height / docPageRect.height; |
| } else { |
| m.a *= (float)devicePageRect.height / docPageRect.width; |
| m.d *= (float)devicePageRect.width / docPageRect.height; |
| } |
| m.Rotate(iRotate * 1.57079632675f); |
| switch (iRotate) { |
| case 0: |
| m.e = bFlipX ? (float)devicePageRect.right() : (float)devicePageRect.left; |
| m.f = bFlipY ? (float)devicePageRect.bottom() : (float)devicePageRect.top; |
| break; |
| case 1: |
| m.e = bFlipY ? (float)devicePageRect.left : (float)devicePageRect.right(); |
| m.f = bFlipX ? (float)devicePageRect.bottom() : (float)devicePageRect.top; |
| break; |
| case 2: |
| m.e = bFlipX ? (float)devicePageRect.left : (float)devicePageRect.right(); |
| m.f = bFlipY ? (float)devicePageRect.top : (float)devicePageRect.bottom(); |
| break; |
| case 3: |
| m.e = bFlipY ? (float)devicePageRect.right() : (float)devicePageRect.left; |
| m.f = bFlipX ? (float)devicePageRect.top : (float)devicePageRect.bottom(); |
| break; |
| default: |
| break; |
| } |
| return m; |
| } |
| |
| bool PageWidgetFilter(CXFA_FFWidget* pWidget, |
| uint32_t dwFilter, |
| bool bTraversal, |
| bool bIgnorerelevant) { |
| CXFA_WidgetAcc* pWidgetAcc = pWidget->GetDataAcc(); |
| |
| if (!!(dwFilter & XFA_WidgetStatus_Focused) && |
| pWidgetAcc->GetElementType() != XFA_Element::Field) { |
| return false; |
| } |
| |
| uint32_t dwStatus = pWidget->GetStatus(); |
| if (bTraversal && (dwStatus & XFA_WidgetStatus_Disabled)) |
| return false; |
| if (bIgnorerelevant) |
| return !!(dwStatus & XFA_WidgetStatus_Visible); |
| |
| dwFilter &= (XFA_WidgetStatus_Visible | XFA_WidgetStatus_Viewable | |
| XFA_WidgetStatus_Printable); |
| return (dwFilter & dwStatus) == dwFilter; |
| } |
| |
| bool IsLayoutElement(XFA_Element eElement, bool bLayoutContainer) { |
| switch (eElement) { |
| case XFA_Element::Draw: |
| case XFA_Element::Field: |
| case XFA_Element::InstanceManager: |
| return !bLayoutContainer; |
| case XFA_Element::Area: |
| case XFA_Element::Subform: |
| case XFA_Element::ExclGroup: |
| case XFA_Element::SubformSet: |
| case XFA_Element::PageArea: |
| case XFA_Element::Form: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| } // namespace |
| |
| CXFA_FFPageView::CXFA_FFPageView(CXFA_FFDocView* pDocView, CXFA_Node* pPageArea) |
| : CXFA_ContainerLayoutItem(pPageArea), m_pDocView(pDocView) {} |
| |
| CXFA_FFPageView::~CXFA_FFPageView() {} |
| |
| CXFA_FFDocView* CXFA_FFPageView::GetDocView() const { |
| return m_pDocView.Get(); |
| } |
| |
| CFX_RectF CXFA_FFPageView::GetPageViewRect() const { |
| return CFX_RectF(0, 0, GetPageSize()); |
| } |
| |
| CFX_Matrix CXFA_FFPageView::GetDisplayMatrix(const CFX_Rect& rtDisp, |
| int32_t iRotate) const { |
| return GetPageMatrix(CFX_RectF(0, 0, GetPageSize()), rtDisp, iRotate, 0); |
| } |
| |
| std::unique_ptr<IXFA_WidgetIterator> CXFA_FFPageView::CreateWidgetIterator( |
| uint32_t dwTraverseWay, |
| uint32_t dwWidgetFilter) { |
| switch (dwTraverseWay) { |
| case XFA_TRAVERSEWAY_Tranvalse: |
| return pdfium::MakeUnique<CXFA_FFTabOrderPageWidgetIterator>( |
| this, dwWidgetFilter); |
| case XFA_TRAVERSEWAY_Form: |
| return pdfium::MakeUnique<CXFA_FFPageWidgetIterator>(this, |
| dwWidgetFilter); |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFPageWidgetIterator::CXFA_FFPageWidgetIterator(CXFA_FFPageView* pPageView, |
| uint32_t dwFilter) |
| : m_pPageView(pPageView), m_dwFilter(dwFilter), m_sIterator(pPageView) { |
| m_bIgnorerelevant = |
| m_pPageView->GetDocView()->GetDoc()->GetXFADoc()->GetCurVersionMode() < |
| XFA_VERSION_205; |
| } |
| |
| CXFA_FFPageWidgetIterator::~CXFA_FFPageWidgetIterator() {} |
| |
| void CXFA_FFPageWidgetIterator::Reset() { |
| m_sIterator.Reset(); |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::MoveToFirst() { |
| m_sIterator.Reset(); |
| for (CXFA_LayoutItem* pLayoutItem = m_sIterator.GetCurrent(); pLayoutItem; |
| pLayoutItem = m_sIterator.MoveToNext()) { |
| if (CXFA_FFWidget* hWidget = GetWidget(pLayoutItem)) { |
| return hWidget; |
| } |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::MoveToLast() { |
| m_sIterator.SetCurrent(nullptr); |
| return MoveToPrevious(); |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::MoveToNext() { |
| for (CXFA_LayoutItem* pLayoutItem = m_sIterator.MoveToNext(); pLayoutItem; |
| pLayoutItem = m_sIterator.MoveToNext()) { |
| if (CXFA_FFWidget* hWidget = GetWidget(pLayoutItem)) { |
| return hWidget; |
| } |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::MoveToPrevious() { |
| for (CXFA_LayoutItem* pLayoutItem = m_sIterator.MoveToPrev(); pLayoutItem; |
| pLayoutItem = m_sIterator.MoveToPrev()) { |
| if (CXFA_FFWidget* hWidget = GetWidget(pLayoutItem)) { |
| return hWidget; |
| } |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::GetCurrentWidget() { |
| CXFA_LayoutItem* pLayoutItem = m_sIterator.GetCurrent(); |
| return pLayoutItem ? XFA_GetWidgetFromLayoutItem(pLayoutItem) : nullptr; |
| } |
| |
| bool CXFA_FFPageWidgetIterator::SetCurrentWidget(CXFA_FFWidget* hWidget) { |
| return hWidget && m_sIterator.SetCurrent(hWidget); |
| } |
| |
| CXFA_FFWidget* CXFA_FFPageWidgetIterator::GetWidget( |
| CXFA_LayoutItem* pLayoutItem) { |
| CXFA_FFWidget* pWidget = XFA_GetWidgetFromLayoutItem(pLayoutItem); |
| if (!pWidget) |
| return nullptr; |
| |
| if (!PageWidgetFilter(pWidget, m_dwFilter, false, m_bIgnorerelevant)) |
| return nullptr; |
| |
| if (!pWidget->IsLoaded() && |
| !!(pWidget->GetStatus() & XFA_WidgetStatus_Visible)) { |
| pWidget->LoadWidget(); |
| } |
| return pWidget; |
| } |
| |
| void CXFA_TabParam::AppendTabParam(CXFA_TabParam* pParam) { |
| m_Children.push_back(pParam->GetWidget()); |
| m_Children.insert(m_Children.end(), pParam->GetChildren().begin(), |
| pParam->GetChildren().end()); |
| } |
| |
| void CXFA_TabParam::ClearChildren() { |
| m_Children.clear(); |
| } |
| |
| CXFA_FFTabOrderPageWidgetIterator::CXFA_FFTabOrderPageWidgetIterator( |
| CXFA_FFPageView* pPageView, |
| uint32_t dwFilter) |
| : m_pPageView(pPageView), m_dwFilter(dwFilter), m_iCurWidget(-1) { |
| m_bIgnorerelevant = |
| m_pPageView->GetDocView()->GetDoc()->GetXFADoc()->GetCurVersionMode() < |
| XFA_VERSION_205; |
| Reset(); |
| } |
| |
| CXFA_FFTabOrderPageWidgetIterator::~CXFA_FFTabOrderPageWidgetIterator() {} |
| |
| void CXFA_FFTabOrderPageWidgetIterator::Reset() { |
| CreateTabOrderWidgetArray(); |
| m_iCurWidget = -1; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::MoveToFirst() { |
| for (int32_t i = 0; |
| i < pdfium::CollectionSize<int32_t>(m_TabOrderWidgetArray); i++) { |
| if (PageWidgetFilter(m_TabOrderWidgetArray[i], m_dwFilter, true, |
| m_bIgnorerelevant)) { |
| m_iCurWidget = i; |
| return m_TabOrderWidgetArray[m_iCurWidget]; |
| } |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::MoveToLast() { |
| for (int32_t i = pdfium::CollectionSize<int32_t>(m_TabOrderWidgetArray) - 1; |
| i >= 0; i--) { |
| if (PageWidgetFilter(m_TabOrderWidgetArray[i], m_dwFilter, true, |
| m_bIgnorerelevant)) { |
| m_iCurWidget = i; |
| return m_TabOrderWidgetArray[m_iCurWidget]; |
| } |
| } |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::MoveToNext() { |
| for (int32_t i = m_iCurWidget + 1; |
| i < pdfium::CollectionSize<int32_t>(m_TabOrderWidgetArray); i++) { |
| if (PageWidgetFilter(m_TabOrderWidgetArray[i], m_dwFilter, true, |
| m_bIgnorerelevant)) { |
| m_iCurWidget = i; |
| return m_TabOrderWidgetArray[m_iCurWidget]; |
| } |
| } |
| m_iCurWidget = -1; |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::MoveToPrevious() { |
| for (int32_t i = m_iCurWidget - 1; i >= 0; i--) { |
| if (PageWidgetFilter(m_TabOrderWidgetArray[i], m_dwFilter, true, |
| m_bIgnorerelevant)) { |
| m_iCurWidget = i; |
| return m_TabOrderWidgetArray[m_iCurWidget]; |
| } |
| } |
| m_iCurWidget = -1; |
| return nullptr; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::GetCurrentWidget() { |
| return m_iCurWidget >= 0 ? m_TabOrderWidgetArray[m_iCurWidget] : nullptr; |
| } |
| |
| bool CXFA_FFTabOrderPageWidgetIterator::SetCurrentWidget( |
| CXFA_FFWidget* hWidget) { |
| auto it = std::find(m_TabOrderWidgetArray.begin(), |
| m_TabOrderWidgetArray.end(), hWidget); |
| if (it == m_TabOrderWidgetArray.end()) |
| return false; |
| |
| m_iCurWidget = it - m_TabOrderWidgetArray.begin(); |
| return true; |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::GetTraverseWidget( |
| CXFA_FFWidget* pWidget) { |
| CXFA_WidgetAcc* pAcc = pWidget->GetDataAcc(); |
| CXFA_Node* pTraversal = pAcc->GetNode()->GetChild(0, XFA_Element::Traversal); |
| if (pTraversal) { |
| CXFA_Node* pTraverse = pTraversal->GetChild(0, XFA_Element::Traverse); |
| if (pTraverse) { |
| CFX_WideString wsTraverseWidgetName; |
| if (pTraverse->GetAttribute(XFA_ATTRIBUTE_Ref, wsTraverseWidgetName)) { |
| return FindWidgetByName(wsTraverseWidgetName, pWidget); |
| } |
| } |
| } |
| return nullptr; |
| } |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::FindWidgetByName( |
| const CFX_WideString& wsWidgetName, |
| CXFA_FFWidget* pRefWidget) { |
| return pRefWidget->GetDocView()->GetWidgetByName(wsWidgetName, pRefWidget); |
| } |
| |
| void CXFA_FFTabOrderPageWidgetIterator::CreateTabOrderWidgetArray() { |
| m_TabOrderWidgetArray.clear(); |
| |
| std::vector<CXFA_FFWidget*> SpaceOrderWidgetArray; |
| CreateSpaceOrderWidgetArray(&SpaceOrderWidgetArray); |
| if (SpaceOrderWidgetArray.empty()) |
| return; |
| |
| int32_t nWidgetCount = pdfium::CollectionSize<int32_t>(SpaceOrderWidgetArray); |
| CXFA_FFWidget* hWidget = SpaceOrderWidgetArray[0]; |
| while (pdfium::CollectionSize<int32_t>(m_TabOrderWidgetArray) < |
| nWidgetCount) { |
| if (!pdfium::ContainsValue(m_TabOrderWidgetArray, hWidget)) { |
| m_TabOrderWidgetArray.push_back(hWidget); |
| CXFA_WidgetAcc* pWidgetAcc = hWidget->GetDataAcc(); |
| if (pWidgetAcc->GetUIType() == XFA_Element::ExclGroup) { |
| auto it = std::find(SpaceOrderWidgetArray.begin(), |
| SpaceOrderWidgetArray.end(), hWidget); |
| int32_t iWidgetIndex = it != SpaceOrderWidgetArray.end() |
| ? it - SpaceOrderWidgetArray.begin() + 1 |
| : 0; |
| while (true) { |
| CXFA_FFWidget* pRadio = |
| SpaceOrderWidgetArray[iWidgetIndex % nWidgetCount]; |
| if (pRadio->GetDataAcc()->GetExclGroup() != pWidgetAcc) { |
| break; |
| } |
| if (!pdfium::ContainsValue(m_TabOrderWidgetArray, hWidget)) { |
| m_TabOrderWidgetArray.push_back(pRadio); |
| } |
| iWidgetIndex++; |
| } |
| } |
| if (CXFA_FFWidget* hTraverseWidget = GetTraverseWidget(hWidget)) { |
| hWidget = hTraverseWidget; |
| continue; |
| } |
| } |
| auto it = std::find(SpaceOrderWidgetArray.begin(), |
| SpaceOrderWidgetArray.end(), hWidget); |
| int32_t iWidgetIndex = it != SpaceOrderWidgetArray.end() |
| ? it - SpaceOrderWidgetArray.begin() + 1 |
| : 0; |
| hWidget = SpaceOrderWidgetArray[iWidgetIndex % nWidgetCount]; |
| } |
| } |
| |
| void CXFA_FFTabOrderPageWidgetIterator::OrderContainer( |
| CXFA_LayoutItemIterator* sIterator, |
| CXFA_LayoutItem* pContainerItem, |
| CXFA_TabParam* pContainer, |
| bool& bCurrentItem, |
| bool& bContentArea, |
| bool bMarsterPage) { |
| std::vector<std::unique_ptr<CXFA_TabParam>> tabParams; |
| CXFA_LayoutItem* pSearchItem = sIterator->MoveToNext(); |
| while (pSearchItem) { |
| if (!pSearchItem->IsContentLayoutItem()) { |
| bContentArea = true; |
| pSearchItem = sIterator->MoveToNext(); |
| continue; |
| } |
| if (bMarsterPage && bContentArea) { |
| break; |
| } |
| if (bMarsterPage || bContentArea) { |
| CXFA_FFWidget* hWidget = GetWidget(pSearchItem); |
| if (!hWidget) { |
| pSearchItem = sIterator->MoveToNext(); |
| continue; |
| } |
| if (pContainerItem && (pSearchItem->GetParent() != pContainerItem)) { |
| bCurrentItem = true; |
| break; |
| } |
| tabParams.push_back(pdfium::MakeUnique<CXFA_TabParam>(hWidget)); |
| if (IsLayoutElement(pSearchItem->GetFormNode()->GetElementType(), true)) { |
| OrderContainer(sIterator, pSearchItem, tabParams.back().get(), |
| bCurrentItem, bContentArea, bMarsterPage); |
| } |
| } |
| if (bCurrentItem) { |
| pSearchItem = sIterator->GetCurrent(); |
| bCurrentItem = false; |
| } else { |
| pSearchItem = sIterator->MoveToNext(); |
| } |
| } |
| std::sort(tabParams.begin(), tabParams.end(), |
| [](const std::unique_ptr<CXFA_TabParam>& arg1, |
| const std::unique_ptr<CXFA_TabParam>& arg2) { |
| const CFX_RectF& rt1 = arg1->GetWidget()->GetWidgetRect(); |
| const CFX_RectF& rt2 = arg2->GetWidget()->GetWidgetRect(); |
| if (rt1.top - rt2.top >= XFA_FLOAT_PERCISION) |
| return rt1.top < rt2.top; |
| return rt1.left < rt2.left; |
| }); |
| for (const auto& pParam : tabParams) |
| pContainer->AppendTabParam(pParam.get()); |
| } |
| |
| void CXFA_FFTabOrderPageWidgetIterator::CreateSpaceOrderWidgetArray( |
| std::vector<CXFA_FFWidget*>* WidgetArray) { |
| CXFA_LayoutItemIterator sIterator(m_pPageView); |
| auto pParam = pdfium::MakeUnique<CXFA_TabParam>(nullptr); |
| bool bCurrentItem = false; |
| bool bContentArea = false; |
| OrderContainer(&sIterator, nullptr, pParam.get(), bCurrentItem, bContentArea); |
| WidgetArray->insert(WidgetArray->end(), pParam->GetChildren().begin(), |
| pParam->GetChildren().end()); |
| |
| sIterator.Reset(); |
| bCurrentItem = false; |
| bContentArea = false; |
| pParam->ClearChildren(); |
| OrderContainer(&sIterator, nullptr, pParam.get(), bCurrentItem, bContentArea, |
| true); |
| WidgetArray->insert(WidgetArray->end(), pParam->GetChildren().begin(), |
| pParam->GetChildren().end()); |
| } |
| |
| CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::GetWidget( |
| CXFA_LayoutItem* pLayoutItem) { |
| if (CXFA_FFWidget* pWidget = XFA_GetWidgetFromLayoutItem(pLayoutItem)) { |
| if (!pWidget->IsLoaded() && |
| (pWidget->GetStatus() & XFA_WidgetStatus_Visible)) { |
| pWidget->LoadWidget(); |
| } |
| return pWidget; |
| } |
| return nullptr; |
| } |
| |
| CXFA_TabParam::CXFA_TabParam(CXFA_FFWidget* pWidget) : m_pWidget(pWidget) {} |
| |
| CXFA_TabParam::~CXFA_TabParam() {} |